<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>NorthDream</title>
    <style>
        body{
            background-color: antiquewhite;
        }
        .hh{
            line-height: 300px;/*垂直居中关键*/

            text-align:center;

            height: 200px;

            font-size: 36px;
            color: blue;
        }
        .search{
            size: 20px;
            text-align: center;
            margin-top: 0px;
        }
        .tb{
            border-color: aquamarine ;
        }
    </style>
</head>
<body>
<h1 class="hh">百度</h1></font>
<center>
<input class="search" type="text" >
    <input type="button" value="百度一下" onclick="alert('干我')"><br><br>
    <a href="/login.html">登录</a>
    <a href="/register.html">注册</a>
    <a href="/userList">用户列表</a>
    <br>
    <a href="/writeArticle.html">发表文章</a>
    <a href="/articleList">文章列表</a>
    <table border="5px" class="tb">
        <tr>
            <td rowspan="2">第一列</td>
            <td>第二列</td>
            <td colspan="2" align="center">第三列</td>
        </tr>
        <tr>
            <td>第二列</td>
            <td >第三列</td>
            <td>第四列</td>
        </tr>
    </table>
</center>
</body>
</html>